584,871 active members*
5,239 visitors online*
Register for free
Login
IndustryArena Forum > MetalWorking > MetalWork Discussion > please, how do you check the excentricity for turning tools ? ( cnc, tilted saddle )
Results 1 to 5 of 5
  1. #1
    Join Date
    Jun 2015
    Posts
    4131

    please, how do you check the excentricity for turning tools ? ( cnc, tilted saddle )

    hello, i recently setup some small parts on a 250mm chuck, and for few operations i use gang/small tools; i have to align them on center pretty well, because they are fragile

    i also noticed that 25mm shank tools do have the cutting edge at height 25±0.25, while i was expecting 25±0.1

    please, how do you check the alignment, besides cutting a face ? i mean do you use a faster method, which does not involve cutting ? like attached things ? do you know what is their precision, are they reliable ?

    image 01 : requires to have cilindrical jaws at a certain position, in order to clamp the device; such jaws should clamp without tir, at least where the bubble is located ( = downtime with jaws preparation, and jaws set-up; is faster to face-cut )
    image 02 & 03 : are not for bent sleighs, but for horizontal

    kindly
    Attached Thumbnails Attached Thumbnails 01.jpg   02.jpg   03.jpg  
    Ladyhawke - My Delirium, https://www.youtube.com/watch?v=X_bFO1SNRZg

  2. #2
    Join Date
    Dec 2013
    Posts
    5717

    Re: please, how do you check the excentricity for turning tools ? ( cnc, tilted saddl

    I use a 0.625'' dowel pin in the chuck or collet. Measure the tool height with a height gauge, measure the station height with gauge blocks, subtract the difference and add the pin radius, and that is the required shims to put the tool point on the spindle center line.

    Then I store the dimensions on the computer with this screen in my program. Inputting the tool height and station height and clicking Apply calculates the required shims.

    Jim Dawson
    Sandy, Oregon, USA

  3. #3
    Join Date
    Mar 2015
    Posts
    409

    Re: please, how do you check the excentricity for turning tools ? ( cnc, tilted saddl

    I found this on the internet and made one myself. If the lathe is horizontal, it works like a dream,

  4. #4
    Join Date
    Nov 2017
    Posts
    591
    Quote Originally Posted by hfjbuis View Post
    I found this on the internet and made one myself. If the lathe is horizontal, it works like a dream,

    Interesting. Actually not limited to horizontal x travel. Could be designed to account for slant bed if you know the exact angle. I think I'll make one for my mill turn setup which has vertical x travel when turning. The bubble level just needs to be horizontal when the stop is resting on the tool tip. Luckily for me, I don't need to trial and error with shims. Jog it in to level with 3rd axis

  5. #5
    Join Date
    Jun 2015
    Posts
    4131

    Re: please, how do you check the excentricity for turning tools ? ( cnc, tilted saddl

    Could be designed to account for slant bed
    yes, i could craft one, but i wish to buy it / kindly
    Ladyhawke - My Delirium, https://www.youtube.com/watch?v=X_bFO1SNRZg

Similar Threads

  1. Replies: 0
    Last Post: 05-12-2019, 10:29 AM
  2. Replies: 2
    Last Post: 09-27-2017, 08:12 AM
  3. cycle stability inspection
    By deadlykitten in forum Okuma
    Replies: 0
    Last Post: 01-12-2017, 08:22 PM
  4. CNC Vertial Turning Tools
    By yifei in forum Want To Buy...Need help!
    Replies: 2
    Last Post: 04-01-2012, 07:36 AM
  5. TURNING TOOLS!
    By didzbartholome in forum CNC Tooling
    Replies: 2
    Last Post: 09-21-2011, 11:21 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •